
Delightful Dagger
Common NameDelightful Dagger
Scientific NameAcronicta vinnula
FamilyNoctuidae
SubfamilyAcronictinae
Wingspan (mm)30
Primary Colorsgrey, white, black
HabitatDeciduous woodlands, forests, suburban areas
Geographic RangeEastern North America, from southern Canada south to Florida and west to Texas
Host Plantselm (Ulmus spp.)
Flight PeriodMay to September (two broods)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are hairy, often with tufts, and feed on the leaves of elm trees. Pupation occurs in a cocoon constructed from silk and chewed wood or bark.
Identification TipsDistinguished by its generally pale, frosty grey and white forewings, which are often lighter than other dagger moths. Look for the faint, wavy subterminal line and the characteristic 'dagger' marks near the base and reniform spot, though these can be less prominent than in other *Acronicta* species.
Description
A small to medium-sized moth with mottled pale grey and white forewings, featuring subtle black dagger-like markings and a wavy subterminal line. The hindwings are typically plain white or light grey.




